top tot tou toy tpa tpc tpg tpi tpl tpn tpo tpp tpt tpu tta ttc ttg tti ttl ttn tto ttp ttt ttu tty tua tuc tug tui tul tun tuo tup tut tuu tuy tya tyc tyg tyl tyn tyo typ tyt ua- uaa uac uag uai ual uan uao uap uat uau uay uca ucc ucg uci ucl ucn uco ucp uct ucu uga ugc ugg ugi ugl ugn ugo ugp ugt ugu uia uic uig uii uil uin uio uip uit uiu ula ulc ulg uli ull uln ulo ulp ult ulu uly un- una unc ung uni unl unn uno unp unt unu uny uoa uoc uog uol uon uoo uop uot up- upa upc upg upi upn upo upp upt upu uta utc uti utl utn uto utp utt utu uty uua uuc uug uun uut uuu uyc uyi uyo uyu yaa yac yag yai yal yan yao yap yat yau yay yca ycc yci ycl yco ycp ycu ycy yga ygc ygl ygo yig yii yin yio yip yit ylc ylg yli yll ylt yly yna yng ynn ynp ynu yny yoc yog yoi yol yon yoo yop yot you yoy ypa ypg ypl ypo ypu yta ytc ytl ytn yto ytp ytt ytu yua yug yui yul yun yuo yup yut yuu yuy yyc yyg yyt yyu yyy